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Update size and position for colored font with oversampling

This commit is contained in:
volzhs 2020-01-07 02:15:23 +09:00
parent 61dd7748ca
commit e03ac8c618
2 changed files with 19 additions and 5 deletions
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22
scene/resources/dynamic_font.cpp
View File

@ -195,13 +195,13 @@ Error DynamicFontAtSize::_load() {
if (FT_HAS_COLOR(face) && face->num_fixed_sizes > 0) {
int best_match = 0;
int diff = ABS(id.size - ((int64_t)face->available_sizes[0].width));
scale_color_font = float(id.size) / face->available_sizes[0].width;
scale_color_font = float(id.size * oversampling) / face->available_sizes[0].width;
for (int i = 1; i < face->num_fixed_sizes; i++) {
int ndiff = ABS(id.size - ((int64_t)face->available_sizes[i].width));
if (ndiff < diff) {
best_match = i;
diff = ndiff;
scale_color_font = float(id.size) / face->available_sizes[i].width;
scale_color_font = float(id.size * oversampling) / face->available_sizes[i].width;
}
}
FT_Select_Size(face, best_match);
@ -299,7 +299,7 @@ void DynamicFontAtSize::set_texture_flags(uint32_t p_flags) {
}
}
float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks, bool p_advance_only) const {
float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks, bool p_advance_only, bool p_outline) const {
if (!valid)
return 0;
@ -314,6 +314,20 @@ float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2 &p_pos, CharT
float advance = 0.0;
// use normal character size if there's no outline charater
if (p_outline && !ch->found) {
FT_GlyphSlot slot = face->glyph;
int error = FT_Load_Char(face, p_char, FT_HAS_COLOR(face) ? FT_LOAD_COLOR : FT_LOAD_DEFAULT);
if (!error) {
error = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
if (!error) {
Character character = Character::not_found();
character = const_cast<DynamicFontAtSize *>(this)->_bitmap_to_character(slot->bitmap, slot->bitmap_top, slot->bitmap_left, slot->advance.x / 64.0);
advance = character.advance;
}
}
}
if (ch->found) {
ERR_FAIL_COND_V(ch->texture_idx < -1 || ch->texture_idx >= font->textures.size(), 0);
@ -875,7 +889,7 @@ float DynamicFont::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_
// If requested outline draw, but no outline is present, simply return advance without drawing anything
bool advance_only = p_outline && outline_cache_id.outline_size == 0;
return font_at_size->draw_char(p_canvas_item, p_pos, p_char, p_next, color, fallbacks, advance_only) + spacing_char;
return font_at_size->draw_char(p_canvas_item, p_pos, p_char, p_next, color, fallbacks, advance_only, p_outline) + spacing_char;
}
void DynamicFont::set_fallback(int p_idx, const Ref<DynamicFontData> &p_data) {

2
scene/resources/dynamic_font.h
View File

@ -192,7 +192,7 @@ public:
Size2 get_char_size(CharType p_char, CharType p_next, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks) const;
float draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks, bool p_advance_only = false) const;
float draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks, bool p_advance_only = false, bool p_outline = false) const;
void set_texture_flags(uint32_t p_flags);
void update_oversampling();